There have been two drastic changes to Googles Gmail service in the last week. The first will probably make most users happy, gmail is not available to everyone. That is right, no more begging for invites, just visit the gmail site and signup for an account if you need one.
Back Up Your Gmail
Recently some news emerged on the internet that some gmail users lost some or even all of their mails that have been in that account. There is no obvious way to backup the mail that exists in your gmail account. You could probably forward the important mail to another account but this solution is not really that practicable.
Get Notified in Firefox about new mail
I don’t keep Thunderbird, my email client, open all the time and don’t like to visit websites of webmail accounts as well. It is a pain in the *** to visit gmail, hotmail or yahoo mail to see if there is new mail in the inbox. I was using the gmail firefox extension to get a notification if new mail did arrive.
How to get mail from all thunderbird accounts at once
The email client Thunderbird does not necessarily retrieve messages from all of your mail accounts at startup. By default the first mail account will be checked on startup and all mail accounts will be checked every ten minutes. The following user.js tweak changes this behavior in the way that Thunderbird retrieves mail from all accounts at startup as well.

